Design of display function in rapid detection system of photoelectric encoder

ZUO Yang; LONG Ke-hui; ZHOU Lei; QIAO Ke; LIU Jin-guo; LIU Bing

doi:10.3788/YJYXS20142906.0957

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Design of display function in rapid detection system of photoelectric encoder

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- Design of display function in rapid detection system of photoelectric encoder
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 6, Pages: 957-962(2014)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2. 中国科学院大学, 北京 100039
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20142906.0957
  CLC： TP212.12
- Received：19 May 2014，
  
  Revised：10 July 2014，
  
  Published Online：24 June 2014，
  
  Published：05 December 2014
- 稿件说明：
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左洋, 龙科慧, 周磊, 乔克, 刘金国, 刘兵. 光电编码器快速地检系统显示功能设计[J]. 液晶与显示, 2014,29(6): 957-962

ZUO Yang, LONG Ke-hui, ZHOU Lei, QIAO Ke, LIU Jin-guo, LIU Bing. Design of display function in rapid detection system of photoelectric encoder[J]. , 2014,29(6): 957-962
左洋, 龙科慧, 周磊, 乔克, 刘金国, 刘兵. 光电编码器快速地检系统显示功能设计[J]. 液晶与显示, 2014,29(6): 957-962 DOI： 10.3788/YJYXS20142906.0957.

ZUO Yang, LONG Ke-hui, ZHOU Lei, QIAO Ke, LIU Jin-guo, LIU Bing. Design of display function in rapid detection system of photoelectric encoder[J]. , 2014,29(6): 957-962 DOI： 10.3788/YJYXS20142906.0957.

摘要

针对航空航天领域中高精度、高转速光电轴角编码器的性能检测问题，设计了一种基于航天级光电编码器的快速地检系统显示功能。系统可同时对多台光电编码器信号进行采集、处理、通信和显示，以DSP+CPLD为核心处理模块，CPLD控制高速A/D对光电编码器信号的采集与粗码数据锁存，DSP负责处理编码器精粗码信号和数据通讯与显示功能。经处理过的数据信息由自定义的通信接口通过双口RAM进行传输，利用外部按键控制LCD分别显示出从RAM中读取的每台编码器二进制和度分秒形式的角度位置信息。实验结果表明，该系统可同时处理多台编码器信号数据，并实现数据传输通信和显示功能，实时性好，可视性强，并且系统显示功能还可进一步扩展。

Abstract

Aiming at the problem of performance testing about high-precision and high-speed optical shaft encoder in the field of aerospace

the function of display in rapid detection system based on aerospace photoelectric encoder was designed. The system could simultaneously complete acquisition

processing

communication and display of multiple optical encoders. DSP + CPLD was core processing module. CPLD controlled the high-speed A/D to complete photoelectric encoder signal acquisition and data latches coarse code. DSP was responsible for the completion of processing crude code and precise code encoder signal

data communication and display. The data information of processed was transmitted by the dual port RAM in the customize communication interfaces. Each of the encoder reading from RAM about the angular position in binary and degrees

minutes

seconds form were displayed in the LCD screen by external buttons controlling. The results show that the system can handle data signal of multiple encoders

data transmission and display. The system is good real-time and strong visibility. Display function of system can be further expanded.

关键词

Keywords

references

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